. >> and vice president biden says a plan is emerging and what the nra is saying. >> is your messy home causing fights between you and your significant other? new tools to help you get hmm, it says here that cheerios helps lower cholesterol as part of a heart healthy diet. that's true. ...but you still have to go to the gym. ♪ the one and only, cheerios ...and now... you! [ giggles ] ♪ the one and only, cheerios >>> i saw the man that i looked up to i always want to make proud started doing what he wanted me to do and start doing the opposite. >> the family of junior seau as to what went wrong and why he shot and killed himself last may. today we learned he suffered from a degenerative brain disease. >> that is often associated with repeated blows to the head. we talked to his family about the findings. >> the sudden suicide of junior seau shocked sports fans and sent hits family screaming for answers. >> we just wanted the truth. >> he was a legend on the gridiron, a 12 time pro bowler that was known for crushing hits like this. it's the bruising blow that has made the family and m